EP 2362514 A3 20121017 - Device for reducing earth leakage current
Title (en)
Device for reducing earth leakage current
Title (de)
Vorrichtung zur Fehlerstromreduktion
Title (fr)
Dispositif de réduction du courant de défaut à la terre
Publication
Application
Priority
AT 2932010 A 20100225
Abstract (en)
[origin: EP2362514A2] The device has a leakage current reducer (2) inductively coupling two electrical phases (3) of a multi-phase electrical energy transmission path (1). The reducer has an iron core comprising three coils (14) inductively coupled with each other, electrically isolated from each other and connected with the electrical phases. A transformer has primary- and secondary windings provided with same number of windings, connected with the respective electrical phases and connected with each other by a bridge. Independent claims are also included for the following: (1) a multi-phase electrical energy transmission path comprising a device for leakage current reduction (2) a method for leakage current reduction in a multi-phase electrical energy transmission path.
IPC 8 full level
H01F 29/14 (2006.01); H02H 9/08 (2006.01)
CPC (source: EP)
H02H 9/08 (2013.01); H01F 30/12 (2013.01)
Citation (search report)
- [X] DE 397819 C 19240704 - JEUMONT FORGES CONST ELEC
- [X] DE 919181 C 19541014 - SIEMENS AG
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2362514 A2 20110831; EP 2362514 A3 20121017; EP 2362514 B1 20160406; AT 509837 A2 20111115; AT 509837 A3 20130415; AT 509837 B1 20130615
DOCDB simple family (application)
EP 11001529 A 20110224; AT 2932010 A 20100225